Very low bit-rate video compression using wavelets

C. Kwan, Baoxin Li, R. Xu, T. Tran, T. Nguyen, J. Hopkins, U. Boston

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

A hybrid algorithm is proposed for very low bit-rate video compression. The algorithm uses a new wavelet based coder for Intraframe compression and DCT for Interframe compression. The wavelet coder technique known as OBTWC (Overlapped Block Transform Wavelet Coder) consists of three steps. First, a set of overlapped block transforms is used to transform the image data into 8×8 blocks in the frequency domain. Second, a mapping is then performed to convert the transformed image into a multiresolution representation that resembles the zero-tree wavelet transform. Third, the multiresolution representation is then coded by a conventional dyadic wavelet coder, which basically truncates the high frequency contents in a very efficient manner. Our proposed method essentially combines the advantages of both block transform and wavelet coding techniques while eliminating their respective weaknesses. Simulation results show that the coder achieves more than 300:1 compression ratio at a frame rate of 10 per second.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsH.H. Szu, D.L. Donoho, A.W. Lohmann, W.J. Campbell, J.R. Bussy
Pages176-180
Number of pages5
Volume4391
DOIs
StatePublished - 2001
Externally publishedYes
EventWavelet Applications VIII - Orlando, FL, United States
Duration: Apr 18 2001Apr 20 2001

Other

OtherWavelet Applications VIII
CountryUnited States
CityOrlando, FL
Period4/18/014/20/01

Fingerprint

video compression
coders
Image compression
Wavelet transforms
wavelet analysis
dyadics
discrete cosine transform
compression ratio
coding
simulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kwan, C., Li, B., Xu, R., Tran, T., Nguyen, T., Hopkins, J., & Boston, U. (2001). Very low bit-rate video compression using wavelets. In H. H. Szu, D. L. Donoho, A. W. Lohmann, W. J. Campbell, & J. R. Bussy (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4391, pp. 176-180) https://doi.org/10.1117/12.421197

Very low bit-rate video compression using wavelets. / Kwan, C.; Li, Baoxin; Xu, R.; Tran, T.; Nguyen, T.; Hopkins, J.; Boston, U.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / H.H. Szu; D.L. Donoho; A.W. Lohmann; W.J. Campbell; J.R. Bussy. Vol. 4391 2001. p. 176-180.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kwan, C, Li, B, Xu, R, Tran, T, Nguyen, T, Hopkins, J & Boston, U 2001, Very low bit-rate video compression using wavelets. in HH Szu, DL Donoho, AW Lohmann, WJ Campbell & JR Bussy (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4391, pp. 176-180, Wavelet Applications VIII, Orlando, FL, United States, 4/18/01. https://doi.org/10.1117/12.421197
Kwan C, Li B, Xu R, Tran T, Nguyen T, Hopkins J et al. Very low bit-rate video compression using wavelets. In Szu HH, Donoho DL, Lohmann AW, Campbell WJ, Bussy JR, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4391. 2001. p. 176-180 https://doi.org/10.1117/12.421197
Kwan, C. ; Li, Baoxin ; Xu, R. ; Tran, T. ; Nguyen, T. ; Hopkins, J. ; Boston, U. / Very low bit-rate video compression using wavelets. Proceedings of SPIE - The International Society for Optical Engineering. editor / H.H. Szu ; D.L. Donoho ; A.W. Lohmann ; W.J. Campbell ; J.R. Bussy. Vol. 4391 2001. pp. 176-180
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